Question

46. Draw a neat and labelled diagram of the various types of muscular tissue to show the difference
between them.
5
Derive an expression for kinetic energy of an object. An object of mass 10 kg is dropped from a heigh
of 100 cm find a) its kinetic energy. B) velocity, just as it reaches the ground. (8-10m/s')
16. Number of electron, proton and neutron in chemical species A,B,C and D is given below!
5
Element
Protons
Electrons
2
Neutron
3
7
10
8
C
8
8
10
8
Now answer the following questions
What is the mass number of A and B?
b) What is the atomic number of B?
Which two elements represent a pair of isotopes and why?
What is the valency of element C?
What is the valency of element D?
Also justify your answers.
ALL THE BEST​

Answer 1

Answer:

this question is very hard!